Float-valve.



E. H. LAWRENCE.

FLOAT VALVE.

APPLICATION FILED MAR. 26, 1912.

Patented Dec. 1, 1914,

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EDWARD H. LAWRENCE, OF CAMERON, WEST VIRGINIA.

FLOAT-VALVE.

Application filed March 26, 1912.

To all whom it may concern Be it known that I, EDWARD H. LAWRENCE, acitizen of the United States, residing at Cameron, county of Marshall,in the State of Nest Virginia, have invented certain new and useful.Improvements in Float-Valves; and I do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

This invention relates to water supply mechanism for flush tanks and thelike, and its object is to provide such a mechanism of novelconstruction whose parts will be so positioned that the valve can beeasily in spected and removed without reaching into the box.

Broadly the invention consists in placing the valve and its casingexterior to the flushing box, and so mounting the valve in the casingthat it can be readily removed when a portion of the casing is removed.

Heretofore, in order to disassemble the supply valve, it has beennecessary to reach into the flushing box during some stage of theoperation to remove certain parts, before access to the valve propercould be obtained. In most cases, the valve itself had. to be withdrawnthrough the box. Obviously, this is a disadvantageous feature.

According to the present invention, the valve can be readily inspectedat any time, by simply removing a cap on one portion of the casing, thevalve can then be removed without interfering in any way with the re.maining parts.

The invention is depicted in the accompanying drawing, but variousmodifications can be made without departing from the spirit or scope ofthe invention.

In the drawing :-Figure 1 is a broken sectional View of a water supplymechanism for a flush tank constructed in accordance with the invention.Fig. 2 is a plan view of the valve casing with a portion of the casingbroken away to show the valve lever and the manner of mounting the same.

In these views, like reference characters refer to corresponding parts.

The flush tank may be of any desired type as the invention is applicablein all cases, no matter what the exact construction of the tank mightbe. In communication with the tank 1, is a cylindrical casing 2,preferably horizontally disposed. The communication Specification ofLetters Patent.

Patented Dec. 1, 1914.

Serial No. 686,417.

is established by means of the connecting portion 3, which is preferablya vertically dlsposed cylindrical extension integral with the casingproper and provided with an opening 3. This extension which isexteriorly threaded protrudes into the interior of the flushing tank andis held rigid with respect to said tank by means of a thumb nut 4:,which is screwed down upon a washer interposed between the nut and theflush tank. By this means the entire casing is clamped rigidly inposition. Sliding in the vertically disposed cylindrical portion 3 is apiston 5 having a downwardly extending arm 6, for the purposehereinafter set forth. The piston is operated by any suitable means,such as the usual ball float secured to the extremity of a rod 7. Theupper portion of the vertically disposed cylindrical portion 3preferably carries a sleeve 8, to whichis secured an upwardly inclinedfulcrum extension 9, and to this extension the float mechanism ispivoted. Instead of pivoting the rod 7 directly to this fulcrum, a lever10 is preferably provided in which the rod 7 is socketedd This lever is)ivoted at 11 to the fulcrum and the portion etween the pivot 11 and thepiston 5 acts as a cam which engages in a suitable recess 12 in thepiston.

The casing 2 contains the valve mechanism comprising a valve 12 and aseat 13. The valve 12 is preferably carried by a valve lever letjournaled in the casing in any manner which will render the leverreadily removable. Preferably, it is journaled as follows :-The lever 11 carries at one end a pintle 15, which rests in bearing blocks 16 castintegral with the casing. The blocks are provided with recesses orgrooves 17 to receive the pintle which is held in such recesses by a cap18 screwed upon the end of the casing and engaging the extremity of thevalve lever as at 19. This construction is advantageous, due to itssimplicity and to the fact that the lever can be easily removed from thecasing when the cap 18 is removed. The lever could be mounted in manyways, however, so that the cap 18 would not be depended upon to hold itin its bearings. The extremity of the lever opposite its journaled endis engaged by the piston extension 6. For this purpose, the saidextension is preferably provided with a hook portion 20, which engagesthe lever in such a manner that it can be readily withdrawn whendesired, as clearly shown in the drawing.

' valve lever.

The valve seat 13 is in the present case formed on the upper portion ofan annular member 21, which can be easily screwed into the casing. Thesupply pipe 22 is then secured to this member by a cap 23 with theinterposition of a suitable washer 24.

It is apparent from the description that when the tank is sufficientlyexhausted of its contents, the ball float will assume a low position,thereby swinging lever 10 around its pivoted connection 11 to raise thepiston 5. This action uncovers the opening 3 and lifts the valve leveris, thereby opening the supply valve to admit water into the tank. Whensufiicient water has been supplied to the tank, the ball floating uponthe surface of the water will depress the piston 5 and close the valve,as will be readily understood.

When it is desired to inspect the valve or to remove it from its casing,it is only neces sary to unscrew the cap 18 and withdraw the The valveseat can then be repaired or cleaned as the case might be. The replacingof the lever is as simple as the re moving of it. It is seen thereforethat it is not necessary to reach into the tank, or to disarrange any ofthe other parts.

What I claim is 1. In a water supply mechanism for a flush tank, ahorizontally disposed valve casing adapted to be located below the tank,a removable end portion on said casing, a valve lever carrying a valvepivotally mounted in the casing, said valve lever adapted to be freelydismounted when the end portion of the casing is removed.

2. In a water supply mechanism, a flush tank, a horizontally disposedvalve casing located below and exterior to said tank and having aremovable end portion, a valve lever carrying a valve and pivotallymounted in the casing, means in said tank to operate said valve, saidvalve lever being freely dismountable when the end portion of the casingis removed.

3. In a water supply mechanism for a flush tank, a horizontally disposedvalve casing having a removable portion, a valve lever carrying a valvepivotally mounted at one end in said casing, means to actuate the otherend of said lever, a valve seat to cooperate with said valve, the leverbeing freely removable when said portion of the casing is removed.

4. In a water supply mechanism for a flush tank, a horizontally disposedvalve casing, a pintle removably journaled in one end of said casing, avalve lever carried by Said pintle, a valve carried by said lever, avalve seat to cooperate with said valve, and means comprising avertically guided piston to actuate said lever.

5. In a water supply mechanism, a flush tank, a horizontally disposedvalve casing located externally to said tank, and having a removable endportion, a valve seat in said casing, a valve lever j ournaled in thecasing adjacent the removable portion thereof and carrying a valveadapted to cooperate with said seat, a vertically disposed portion onsaid casing extending into the tank, a piston guided in said portion andhaving a connection with said valve lever, and a floating device in saidtank adapted to actuate said piston.

In testimony whereof I am my signature, in presence of two witnesses.

EDWARD H. LAIVRENCE.

Witnesses:

R. E. CRANE, G. E. CONAWAY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, D. C.

